Arkansas Best Corporation [ABFS]
AutoInfo, Inc. [AUTO.OB]

Celadon Group, Inc. [CLDN]
Con-way Inc. [CNW]
Covenant Transportation Group, Inc. [CVTI]

Dynamex Inc. [DDMX]

Echo Global Logistics, Inc. [ECHO]
Express-1 Expedited Solutions, Inc. [XPO]

Forward Air Corporation [FWRD]
Frozen Food Express Industries, Inc. [FFEX]

Heartland Express, Inc. [HTLD]

J.B. Hunt Transport Services, Inc. [JBHT]

Knight Transportation, Inc. [KNX]

Landstar System, Inc. [LSTR]

Marten Transport, Ltd. [MRTN]

Old Dominion Freight Line, Inc. [ODFL]

P.A.M. Transportation Services, Inc. [PTSI]
Patriot Transportation Holding, Inc. [PATR]

Quality Distribution, Inc. [QLTY]

Saia, Inc. [SAIA]

Universal Truckload Services, Inc. [UACL]
US 1 Industries, Inc. [USOO.OB]
USA Truck, Inc. [USAK]

Vitran Corporation Inc. [VTNC]

Werner Enterprises, Inc. [WERN]

YRC Worldwide Inc. [YRCW]